Hi, could you please check your mod? It brings an issue. I can fix it only when I load very old save first and then load save with your balancers
Error on loading
I get the same error.
I started a new game.
Started building things. Had this mod loaded but not used yet.
Game saved and loaded just fine.
I added a Small U shaped P1,P2,P3 prioritizer, saved the game and it will not load triggering the same error.

This is my list of mods I use
AllTerrainFarm
AllTerrainTreePlanting
AreaSnapTools
AutoForestryDesignations
AutoTerrainDesignations
Bagger288Mod
BattleShipFuelMod
BigBoyMod
BlueprintProductsInfo
boost-plus-plus
Carbon.QuickBuildUnlocked
Carbon.ShowTerrainGrid
CargoFlightMod
CargoHelicopter
cheat-plus-plus
CoastalImmigrationBeacon
ColibriIndustries
CSL-Linked-Cities
CustomAssets
CustomAssets_AirFiltering
CustomAssets_LiquifiedCoal
CustomCrusher
CustomPipes
DesignerToolkit
ElevationPP
ExtendedCargoShips
FactoryLens
FGWY.Logistics
FJproMOD
FlipSettlementModules
FreeT2Stacker
Fusion_Horizon
gameplay-plus-plus
GaspowerMOD
GeologyReservoirEngineering
GridBattery
H4uklotz.VerticalBalancers
Jocker-QoL
KK91_DifficultySettingsMod
LivestockAndAgricultureMOD
Mods.txt
MultiLangLib
MultiPriorityBalancers
MyAirshipMod
MyPowerMOD
NuclearReactorModification
PauseOnStart
PhysicalTradeShip
PipeTerrainIgnoreMod
RARandZIP
recipes-plus-plus
ResearchQueue
RetainingWallsNeverDieMod
ShipAutoExplore
SmartFlareMod
SmartShipUnload
speed-plus-plus
storage-plus-plus
TruckParking
tweaks-plus-plus
UndergroundTransportMod
utilities-plus-plus
WasteToPotatoMod
WindPower
worldgen-plus-plus
WorldMineMod
Ok, Did a little testing in sandbox. set up a u-Priority balancer and got some product flowing.
Loaded only Multi-Priority Balancers and it works just fine.
Added Boost++ and it crashes.
Exit game completely. Started game and added Cheat++ (without Boost++) and it crashes same error
Same thing with Gameplay++
As of this point, it look like your mod is not compatible with any of the ++ mods by Mori. You may want to work with Mori and see if you can make your mod compatible with his mods.

I ran into this issue as well. I can only encourage seeking out Moriarty if the fix is not obvious. He told me the fix has to be in this mod, so I will assume he can be extremely helpful if contacted.
Hi! Do you plan to fix the mod? Previously i could load old version without your assets and then last save with them - only in 2 steps i could solve the problem. Now this method also does not work.
Pleasee help not to loose my save
